smtp

  1. [SOLVED] Outgoing email IP (SMTP at pmg) different from incoming mail IP (public IP at haproxy) - fail of ptr test

    In our setup the email outgoing IP (the Pmg, latest version) is different from the incoming mail IP (which is haproxy, that then has the Pmg as backend). I guess it is not an issue to have two different IPs since so many email server work this way, but we see our outgoing mail failing the...
  2. 451 4.3.0 Error: Queue File Write Error

    I am extremely perplexed by these error notifications I am receiving from my Mailgateway. This email address (supplier@mail.domain.tld), which does not exist, is involved somehow and I am confused where it is coming from, and why I keep finding it in all domains outgoing and incoming email...
  3. Teilweise Connection refused beim Mail versand an PMG

    Hallo zusammen, ich habe hier das Problem das 2-3 meiner Linux Server Mails zeitweise keine Verbindung zum Proxmox Mail Gateway bekommen um Mails zu verschicken. Beispiel, Postfix auf dem Linux Server versucht um 08:45 Uhr eine Mail zu verschicken und bekommt vom Proxmox Mail Gateway ein...
  4. Stupid questions

    Hi everyone! Two stupid questions. 1. Can I set different smtp helo name and smtp banner for each email domain filtered by PMG? 2. Can PMG send a Delivery Status Notification (DSN) message? TIA, Gabriel
  5. Postfix unknown connections

    Hi all, Having a few possibly concerning logs on my host, I appear to be getting some random connections made to Postfix. I currently have it set up to "Internet" as I have an SMTP server elsewhere Jul 30 17:10:27 prmx0 postfix/smtpd[4336]: connect from unknown[103.155.83.201] Jul 30 17:10:28...
  6. Backup Notifications - Email SMTP / STARTTLS

    Hi all, I have having a few issues with sending emails to a syslog email address I have created. I am getting an Undeliverable email bounceback due to auth being needed. Recipient address rejected: SMTP AUTH is required for users under this sender domain Is there any...
  7. PMG smtp behind nginx stream

    Dear community! I am currently trying to install Proxmox Mail Gateway behind a load balancer. This is because I have limited availability of public IP addresses and want to combine things. Loadbalancer Public IP (example) 1.2.3.4 Loadbalancer internal IP: 10.0.0.1 PMG: 10.0.0.10 I am using...
  8. [SOLVED] Configure proxmox to use (external) smtp server

    [EDIT] SOLVED, BY USING THIS FANTASTIC POST: https://forum.proxmox.com/threads/get-postfix-to-send-notifications-email-externally.59940/ Hey all, new to proxmox, so please forgive me my basic questions. I use proxmox on my home-server, so no professional use here. I have one thing left to...
  9. Suggestion - Possibility to provide SMTP credentials during installation or in the WebUI

    Hi everyone, Longtime PVE user here! I have used Proxmox since mid 2013 for private use, and just recently deployed a couple of Enterprise ones at various companies. I realized that it would be very neat if I during installation or in the WebUI could provide SMTP credentials (SMTP-host...
  10. Cannot Change Outbound External Port from 25 to 587

    Hello, I am running into some issues sending mail and was hoping someone may be able to assist. From what I can tell PMG is sending mail externally exclusively on port 25. I am trying to change it to 587 as my ISP blocks port 25. I have attached an image for your reference. Any assistance would...
  11. [SOLVED] PMG acting as relay-server for hosts in networks with dynamic public IP's

    Hi I'm trying something with PMG. What I want to accomplish, is that I can sent mails from different hosts in different public networks on the internet via PMG acting as a SMTP relay. The problem is, that these hosts on the internet are in networks with dynamic public IP's. So I can't at these...
  12. Action Object 'Block' returns 250 2.7.0 BLOCKED. Can this be changed?

    Hi, When we use the final action 'Block' in the rules, the following happens: Aug 27 08:27:43 VCS00080 postfix/lmtp[54042]: DF93FE1159: to=<j.branderhorst@vpo.nl>, relay=127.0.0.1[127.0.0.1]:10024, delay=4.7, delays=0.21/0/0.04/4.4, dsn=2.7.0, status=sent (250 2.7.0 BLOCKED...
  13. Sending and receiving emails issue

    Hi, I am running a mailserver (ISPConfig) in a proxmox lxc container which was working fine and stopped working recently all of a sudden. All the ports necessary are open in the proxmox host: # iptables -L | grep smtp ACCEPT tcp -- anywhere 192.168.25.110 tcp dpt:smtp...
  14. Minimum configuration needed to configure e-mail alerts

    On a fresh install what is the simplest, cleanest, most beginner friendly way to setup e-mail alerts to a remote e-mail address? (assuming a single node on a home LAN)

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